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# S1 normal distribution worded question help watch

1. Hi, I'm a little confused with the worded questions as I'm about to show. I don't recognised any terms like Z>z or Z<z in the question so do not know which way round to make my simultaneous equations, if that even matters? Could someone explain please?
Question 11.
2. This is one of the main points of S1 - being sure that you can not only solve questions once they are in equation form, but to put them into that form in the first place.

If the shelving can pass through the 7 mm gauge, is it smaller or larger than 7 mm? If 98.61% can do this, what is the probability that a randomly chosen shelf can? Put these together, and you should be able to turn the first statement into an equation of the form P(X [< or >] something) = (some probability).

The other one is very similar, and then you're off!
3. (Original post by Pangol)
This is one of the main points of S1 - being sure that you can not only solve questions once they are in equation form, but to put them into that form in the first place.

If the shelving can pass through the 7 mm gauge, is it smaller or larger than 7 mm? If 98.61% can do this, what is the probability that a randomly chosen shelf can? Put these together, and you should be able to turn the first statement into an equation of the form P(X [< or >] something) = (some probability).

The other one is very similar, and then you're off!
Thanks that does make sense. I think the fact I don't exactly know what shelving is threw me also
4. (Original post by AJA1994)
Thanks that does make sense. I think the fact I don't exactly know what shelving is threw me also
This sort of thing can be a real problem, especially for students who don't have English as their first language. One the one hand, I think it's a good idea to make the problems "real world", but on the other, it is easy for some people to become confused, and not be sure if the words they don't recognise are important or not. In this case they weren't, but you never know.
5. (Original post by Pangol)
This sort of thing can be a real problem, especially for students who don't have English as their first language. One the one hand, I think it's a good idea to make the problems "real world", but on the other, it is easy for some people to become confused, and not be sure if the words they don't recognise are important or not. In this case they weren't, but you never know.
I agree. I was doing an m1 mock the other day and the word tobaggon came up and I had no idea what it was until I asked my mum.

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Updated: February 6, 2017
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